17 Dec
2003
17 Dec
'03
11:17 p.m.
Hi All,
800 MHz analog may be the most difficult. GSM perhaps can reach 500 meteres under ideal conditions (Andreas Bogk). IS-95/CDMA probably a bit better than GSM due to the very high data (chip) rate and spread spectrum's better multipath characteristics, although the system's multipath performance most improves communications not ranging (Phil Karn, Qualcomm).
GSM doesn't use spread spectrum?
Either way, I'd imagine that the accurate time domain division used with GSM would provide the Telco's with something a lot better than 500 meters.
Some cells where I live aren't much further apart than 500 meters. :)
Bye for now.